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1

Analysis of Hya locus in B10.BR males with partial delection of Y chromosome

100%
Pietraszek M., Styrna J.
Folia Biologica
|
1995
|
vol. 43
|
issue 3-4
89-91
EN
Skin transplantation technique was used to check the presence of the Hya gene in two consomic strains, B10.BR and B10 BR-Y del, which differ in the length of the chromosome.In both consomic strains the skin grafts from males to females were rejected in approximately the same time .These results show that the delection in the B10 BR-Y del males does not include tha Hya gene.
2

Chromosome 7q11 controls sperm beat cross frequency (BCF) in mice

81%
Golas A., Grzmil P., Muller C., Styrna J.
Folia Biologica
|
2004
|
vol. 52
|
issue 3-4
211-217
EN
The aim of this study was to compare the inheritance of the chromosomal SSLP markers with the inheritance of sperm movement parameters in order to map genes responsible for these quantitative traits (QTs). Chromosome 7 and 14 SSLP markers were tested to obtain the strain distribution pattern (SDP) for recombinant inbred (RI) strains developed from two progenitors, KE and CBA/Kw, which differ significantly in gamete quality. Sperm motility characteristics were determined using the computer assisted semen analysis (CASA) system. The Map manager software was used in order to assess linkage between the analyzed motility parameters and chromosome regions. The marker regression, interval mapping and permutation tests matched the QT loci of BCF with chromosome 7q11. The likelihood ratio statistic for this association was 18.1 with 79% of the total trait variance explained by QTL at this locus. These mapping results suggest that the BCF trait depends on the genetic factor(s) located in this region.
3

Day/night food consumption in mice is strain and age-dependent

81%
Kowal M., Buda-Lewandowska D., Plytycz B., Styrna J.
Folia Biologica
|
2002
|
vol. 50
|
issue 1-2
1-3
EN
Food consumption was measured during the day (lights on) and the night (lights off) and compared between one outbred and 9 inbred strains of mice (CBA/Kw, C3H, DBA2, KP, BALB/c, C57BL, B10.Amst , B10.BR, B10.BR Y-del) in age groups 30-60, 60-90, 90-120, and more than 120 days. Outbred mice and animals from B10 sublines ate significantly more during nocturnal darkness. Day and night food consumption was similar in KP animals. In mice from the remaining strains there was an apparent age-related shift from nocturnal towards diurnal eating habits.
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